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Discipline: Physics

Question topic: Representing Motion

Source: Originais Teachy

Level of difficulty: Medium

(Originais Teachy 2023) - Question Medium of Physics

A car initially travels at 20 m/s, maintaining a constant speed on the highway, going from point A to point B, which is 2000 meters away from A. On the return from point B to point A, the car follows the same trajectory, but with a speed of 30 m/s. Considering that the trajectory from point A to point B is straight and can be represented by an Aristotelian line, what was the average speed of the car during the entire round trip (A-B-A)?
a.
24 m/s
b.
20 m/s
c.
30 m/s
d.
22 m/s
e.
25 m/s

Answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.

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